P084B Transmission Fault, Slipping

[FordConvert]

Update.

Been at a dealer service department since Monday. Not driveable. Transmission jerks and slips. They “had their transmission guy look at it” and say it’s fine. They are convinced it’s electrical but can’t pin it down. Would an electrical issue progressively get worse over seven months until it’s not drivable?

They are uninterested in any narrative from me of the problem, how it manifested and progressed. They just plug in their computers and try to diagnose that way. Feeling a bit helpless.

After asking for a loaner they offered to cover $35/day through Enterprise. Basically covers a Corolla. This is a work truck, hauling material and supplies to off-road sites in winter weather.

Any ideas on how to get pressure from Ford Corporate on this? If that would even work?

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[Snakebitten]

I can't comprehend how their "transmission guy" can declare it's fine.

What does that even mean?

 

[Grafx36510]

I can't comprehend how their "transmission guy" can declare it's fine.

What does that even mean?

It means they don’t know what to do? I feel for this guy. He could have all the documentation in the world and they’re just blowing him off.

 

[Snakebitten]

It means they don’t know what to do? I feel for this guy. He could have all the documentation in the world and they’re just blowing him off.

I'm OK with them saying that they don't know what is causing the issue, or that they don't yet know what the solution is. Neither would sit wrong. But 1 second of the truck behaving the way described and captured in the video above? The only thing you COULDN'T say is that you think the transmission is fine. ??

 

[erixgix]

Time for a new dealership!

That’s got to be frustrating. Kinda difficult to dispute the video. Except for temp gauges in Celsius…for a ‘merican ;p

 

[FordConvert]

Whelp, Ford engineering has advised replacement of the same sensor. Again. For the third time. Along with the wiring pigtail this time. They say the sensor measures fluid pressure and is sending the wrong signals to the clutches, as far as I can remember. I still don’t see how faulty wiring progressively gets worse. This is a mechanical component issue for sure.

Will keep updating, if only to document this for my own records.

Sigh.

 

[FordConvert]

Still waiting on parts, but yesterday I was informed that the transmission valve body will also be replaced. Don’t know how that decision was made, but now it feels like we‘re getting somewhere.

 

[Snakebitten]

Could be easier to get the valve body WITH all the solenoids compared to just getting one solenoid?

A packaging dilemma?

 

[FordConvert]

Perhaps. They were just replacing a fluid pressure sensor (for the third time). So I think this an extra procedure. I don’t purport to know how these transmissions work, but if understand correctly what the valve body does, if that’s the faulty component it explains the behavior of my truck.

 

[FordConvert]

Whelp, while replacing the valve body, they air tested the transmission and it failed. Guess who's getting a new transmission?

They need to reconsider the expertise of that "transmission guy".

 

[Snakebitten]

Whelp, while replacing the valve body, they air tested the transmission and it failed. Guess who's getting a new transmission?

They need to reconsider the expertise of that "transmission guy".

I wonder if they had even disassembled the transmission enough to have done the necessary testing before the valve body arrived?

 

[FordConvert]

I wonder if they had even disassembled the transmission enough to have done the necessary testing before the valve body arrived?

Doesn't seem likely. If a diagnostic air test were performed to start with, would have saved three weeks.

 

[FordConvert]

They are promising me the truck will be done tomorrow.

As a side note, there were strange noises and brake squeaking coming from the right rear for some time. The transmission issues obviously had my attention. Then I found the thread here about the sheared axle bolt issue and I thought there might be a connection. I asked them to check the axle bolts and sure enough, we have another sheared bolt to report. Luckily they have an axle in stock and I'm told that will also be done by EOD.

?

 

[FordConvert]

Finally got my truck back this evening. Only to find it leaking engine coolant all over my garage floor from the front of the engine compartment. The reservoir is empty. Tow truck showing up in the AM.

Ford service is broken.

 

[FordConvert]

Update.

Got the truck back. Drove it to Vegas and back last week. Transmission was running hot for no reason (not hauling or towing anything, and weather was cold). Other things seemed to be buggy (BlueCruise nanny cam, erratic shifting, etc). Decided to check FDRS and saw I could update PCM, nanny cam module, BCM, ABS, and APIM, among others. Nanny cam took 1+ hours, APIM took 2+ hours. I'm up to date now - have Alexa and full-screen CarPlay. Hoping this solves the other issues - seems to shift better after update.

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